Space Engineers

Mac\PC\Linux\SteamOS - Space Engineers
is one of the best games I have ever played. It really captures
a feeling of really being in space and the fight or flight feeling
of a good survival game. Starting out you can pick to start in a
spawn ship, in space, that gives you the very basics to survive
for a short period of time. Of you can choose to start on the surface
of a planet and slowly build up your space launce center and venture
out to the starts from there.

With having to mange electricity, oxygen, nitrogen, and various
other resources you quickly have to find these materials and also
build the infrastructure to process the raw materials into usable
components. Crafting is a very important aspect of the game and
alot of the game can be looking for that one rare elusive mineral
to complete your base station.

All in all this is a greate
game that i have personally spent thousands of hours playing. A
good description would be Minecraft is Space with Physics.